Brace rod holding means for scaffold frames or the like



May 27, 1958 Z. J. JAGIEL BRACE ROD HOLDING MEANS FOR SCAFFOLD FRAMES OR THE LIKE Filed Nov. 29, 1954 m m W d m m Z BYQ I A T O RNEYJ United States BRACE ROD HOLDING MEANS FOR SCAFFOLD FRAMES OR THE LIKE Zigrnund J. Jagiel, Toledo, Ohio, assignor of one-tenth to John W. Bebout, Toledo, Ohio Application November 29, 1954, Serial No. 471,617

Claims. (Cl. 304-40) This invention relates primarily to scafiold structures of the separable frame type, and particularly to the man ner of uniting and relatively bracing the laterally spaced frames of such structures.

The primary object of the invention is the provision of a simple, eflicient and improved means for attaching brace or tie rods singly or in multiple sets to the corner or side posts of scaffold structures in a manner to retain the rods in engaged relation to a post stud and to permit easy and quick removal thereof from the stud, whereby to enhance the practicability and commercial value of structures of this type.

Further objects and advantages of the invention will be apparent from the following detailed description, and from the accompanying drawings illustrating one embodiment thereof, and in which Fig. 1 is a perspective view of two frame members of a scaffold structure spaced apart and with the brace rods engaged to the posts and retained against removal by means embodying the invention;

Figs. 2 and 3 are different enlarged fragmentary elevations of a side post showing the locking means embodying the invention in operative locking engagement with a post stud;

Fig. 4 is a section on the line 44 in Fig. 2, and

Fig. 5 is a view similar to Fig. 2 with one of the brace rods disengaged from the stud and with the locking means resting in inoperative position on the stud.

Referring to the drawings, A and B designate two laterally spaced frame members of a scaffold structure and the brace or tie rods serving to firmly connect the uprights or side posts of said members, as Well understood in the art. The frame members for each section or tier may be placed end to end one on top of another to any desired height, and while the brace rods iii are usually employed to connect the laterally spaced frames disposed in the same level in adjacent laterally spaced sections, they may also be used to connect such frames disposed at different levels.

Each frame member comprises two laterally spaced uprights or side posts ll, 11 rigidly connected by a cross frame, which may be of any suitable form and customarily includes one or more cross rods 12 to serve as plank supports.

In carrying out the present invention, each brace rod 10 is preferably provided at each end with a flattened part 14 adapted to lie flatwise against a side of a frame post 11 to which attached, and this part is perforated to provide an eye 15 for fitting over a receiving stud 16 on the post. These studs are preferably of sufficient length to permit the lapping ends of two or more brace rods to be mounted thereon, as shown in Figs. 2 and 3, should a frame post be connected by two oppositely spaced frames. The number of studs on a post depends on the number of brace rods to be attached thereto.

Mounted on a post 11 in association with each stud l6, and preferably above the same, is a sleeve member 2,836,468 Patented May 27, 1958 18 loosely fitting around the post to slide freely thereon and carrying a locking dog 19 for pivotal movements in a plane lengthwise of the post. This dog when lowered with the member 18 is adapted to coact at its lower end with the outer end of the stud 16 to prevent removal therefrom of an engaged tie or brace bar 10.

The member 18 preferably comprises a yoke of U form to freely straddle a post 11 with its legs projecting a short distance from the post side opposed to that engaged by the yoke loop, as best shown in Fig. 4. The free ends of the yoke legs are connected in outwardly spaced relation at the post side by a cross or fulcrum pin 2% which is retained in position on the member by cotter pins 21, or in any other suitable manner.

The locking dog 19 is fulcrumed on the pin 20 between the legs of the loop member 18 in position for limited rocking movements relative to the post. The dog 19 is preferably U-form in cross-section with its channel facing the post and its legs perforated substantially midway of their ends to receive the fulcrum pin 20. The rocking of the dog is, of course, limited by the striking of its upper end against the post and this rocking is sufficient for the opposite end of the dog, upon a lowering of the loop member 18, to pass down at the outer end of the stud 16 to have camming engagement therewith, as shown in Fig. 2. The forceful placing of the dog in this locking position causes an inward binding of its lower end against the stud end, thus frictionally locking a brace rod or set of brace rods 10 against removal therefrom until the dog has been given an upward blow against its lower end to release and raise it. The dog may then be thrown with its lower end against the post and lowered with the yoke member to permit the nose of the dog to rest in inoperative position on the stud at the inner side of the engaged brace rod ends, as shown in Fig. 5. This permits the rod ends to be released from or engaged with a stud without interference by the locking means. The dog 19, when in engaged or locking position over a stud, serves as a protecting housing therefor and for the ends of the brace rods mounted thereon.

i wish it understood that my invention is not limited to any specific construction, arrangement or form of the parts, as it is capable of numerous modifications and changes without departing from the spirit of the claims.

I claim:

1. in a structure of the class described having a frame member with an upright post, a laterally projecting stud on the post, and a brace rod for the post having an end with an opening therein for receiving the stud, the provision on the post at one side of the stud of a member encircling and guided for sliding movements on the post lengthwise thereof, and a locking dog pivotally carried by said last member for limited rocking movements in a plane lengthwise thereof, said rocking being such that the end of the dog adjacent to the stud may engage the outer end portion of the stud and serve to hold an engaged rod end on the stud.

2. In a structure of the class described having an upright post, a laterally projecting stud on the post, and a brace rod for the post having an end with an opening therein for receiving the stud, the provision on the post at one side of the stud, of a member encircling and guided for sliding movements on the post lengthwise thereof, and a locking dog of lever form pivotally carried by said member and rockable on its pivot for its outer end relative to the stud to have stop coaction with the post and for its inner end to engage the outer end of the stud and serve to retain an engaged brace rod thereon.

3. In a right post, a laterally projecting stud on the post, and

a'brace rod for the post having an end with an opening therein for receiving the stud, the provision on the post guidediforrsliding movements on the post lengthwise thereof, and allocking dog of lever form pivotallyrcarried bysaid member and rockable .on its pivot *for its outer 'end relative to the stud to have stop coaction with the post and for 'its inner end to have cammingi coaction vwith the outer end of the stud inwardly thereof to frictionally resistlreleasing of the stud and dog when the member and dog have been lowered said camming engagement. ,7

'4. 'In a structure of the class described having an upon the post to effect right post, 'a laterally projecting stud on the post and ving'dog pivotally carried by said member between its leg ends for limited rocking movements in a plan e lengthwise of the post, said dog, when rocked outwardly and when said member has been lowered adjacent to said at one side-of the stud, of a member encircling and lit stud, having coaction with the stud to retain a brace rod end on the stud.

5. In a structure of the class described having an upi right post, a laterally projecting stud on the post and a brace rod for the post having an end with an opening therein for receiving the stud, the provision on the post above the lug of a longitudinally slidableyoke member, a dog of. lever form carried by the yoke member for rocking movements in aplane lengthwise of the post and havin such movement limited in one direction by contact of the upper end ofthe dog with the post, 'the'opp'osite end of the dog, when in its outward position and lowered with the yoke-member, having camming'coaction with the outer stud end to frictionally retain such coaction and prevent removal of an engaged brace rod end from the stud.

References Cited in the file of this patent e V UNITED STATES PATENTS .7 Q

Nordone Aug. 3.0, 1955 

